Miter-machine.



No. 694 ,323. Patented Feb. 25, I902.

w. JQPArisoNs.

MITEB MACHINE.

(Application filed Aug. 21, 1901.)

(No Model.) a shem-sh e'et p No. 694,323. Patented Febl 25, I902.

w. J. PARSONS.

MITER MACHINE.

(Applicat ion flled Aug. 21, 1991.)

a Sheets ShetQ.

(No Modl.)

w. PARsuNs. tented-M 2- mTEn MACHINE. pplication filed Aug. 21, 1901.)

(No mum I 3 Sheets-Sheet 3,

UNITED STATES WILLIAM J. PARSONS, OF

DON MITRE BOX COMPANY, TION.

PATENT OFFICE. I

A CORPORA- MITER-MACHINE.

SPECIFICATION forming part of Letters Patent No. 694,323, dated February25, 1902.

Application filed August 21,1901. Serial No. 72,763. (No model.)

T0 aZZ whom, it may concern.-

Be it known that 1, WILLIAM J. PARSONS, of Montague, in the county ofFranklin and State of Massachusetts, have invented certain new anduseful Improvements in Miter- Machines, of which the following is aspecification.

My present invention relates to what are called miter-boxes ormiter-machines.

In the drawings, Figure 1 represents an elevation of the machine. Fig. 2is a view of the outer guide-piece and its supporting-spring. Fig. 3 isa plan view of the machine in operation, the dotted lines showing theposition while in use reversed. Fig. 4.. represents the molding afterbeing cut or beveled at each end, the machine being operated from thesame side of the molding. Fig. 5 is a view of the invention in itspractical use.

One of the important points of the invention is the peculiar arrangementof parts by which the machine can be used to cut opposite miters orangles while being operated from the same side of the molding or otherwood or metal cut. The other points of novelty will be hereinafterexplained.

Referring to the drawings, the machine, having a central fin extendingdownward lengthwise of its center, as shown in Fig. 1, a. The base Aoverlaps on each side of the fin a, as indicated in Fig. 3, and forms aright angle on its under sides with the side faces of the fin a. It willthus be seen that the machine can be used with equal facility whicheverface of the fin is held against the article to be mitered. It will alsobe seen that this arrangement of parts enables the operator tocontinually work from the same side and from the same end of thematerial being cut. This is a very important and valuable feature in allcases, but more especially in cutting large or irregular-formedmoldings. It enables more work to be done in the same time and tends toproduce more exact miter-ing. Near one end and on top of the said base Ais placed the base-plate B, secured to the base by the rivet or screw oThe base-plate Bis made circular and readily revolves on the base'A.Around its edge are provided notches b so arranged as to conform to theangles or bevels desired to be out.

A is the base of On the top of the base is provided the box I), suitablyand movably secured thereto. -In said box is placed the spring catch orbolt b, the outer end 19 preferably made-pointed to correspond with thesize and shape of the notches 19 formed in the rim of the baseplate B.The base-plate and the parts attached thereto are firmly held in placeand instantly set, as desired, by the contacting of the pointed catch bwithin, one of the said notches h The catch bis delicately adjustedlaterally by the'set-screws b 11 one on each side of the box I). It willbe observed that if the catch b is moved laterally the position of'thebase-plate'will "be varied accordingly, as the notches 17 must coincidewith the point of the spring-catch when in use and any turning of thebase-plate of course varies the bevel or angle of cut. I consider thisarrangement of much valve, as it enables the machine to be adjusted tothe closest angle for cutting. By this adjustment the operator can matchmost perfectly any bevel required. Other well-known means of holding thebase-plate could be employed; but the arrangement shown is upon thewhole, I-think, preferable, especially when combined with the method ofadjustment described.

Secured to or solid with the base-plate B is the inner guide-plate B. Tothe said guideplate is'secured the spring 0, which is bent to form aloop upward, as shown in Fig. 1. To the outer end of the said spring 0is secured the outer guide-plate B as shown in Fig. 2. If desired, forthe purpose of stiffening the guide-plates the rib d may be added,though this is not essential.

The saw used in cutting the molding or other material is represented byD, D being the handle. The saw is held in position and at the angledesired by the guide-plates B 13 the spring holding and pressing theguidepla-tes against the sides of the saw.

The surface of each side of the central fin a. is formed, as shown inFig. 1, with alternate depressed and raised surfaces, 00 a; representingthe depressions and y y the raised smooth surfaces. The bearing wouldtherefore be wholly upon the raised surfaces or elevations y y.Preferably thesame form of alternate depressions and raised surfaces maybe The depth of cut used on the inner faces of the guide-plates B Bthough this is not essential.

There is another valuable feature connected with the herein-describedmachine, which consists in its ready removability fromthe work. In theold style of miter-box the molding to be out was placed in the box, andthus held was retained until the cutting was done. In my present machinethe machine is placed on the molding, and where a panel-saw is used itmight be impossible to out clear through a wide molding unless themachine could be removed from the work at any time. This can be readilydone at any stage of the out after starting the saw at the proper angle.with a panel-saw or one having a rib on its back is always limitedunless the guide-plates or other obstructions are removable. Fine workrequires a stiff saw.

-I do not wish to confine myself to the exact details herein shown anddescribed, as these may be varied without departing from the spirit ofmy invention.

What I claim as my invention, and desire to secure by Letters Patent ofthe United States, is-

1. The herein-described miter-machine,consisting of the base A, providedwith the solid central fin a, havingaiace on each side formed at rightangle to the under side of the said base; the base-plate B, providedwith the notches b and adapted to revolve on the pivot which secures itto the base; the sawguide plates B E the spring 0, secured to saidguide-plates; the adjustable catch or bolt 6, having the pointed end band adapted to coincide with the said notches, all combinedsubstantially as and for the purposes set forth.

2. In a miter-machine, the combination of a base provided with alongitudinal central fin and having two right-angular faces inconnection with the under side of said base; with suitable means forholding and adjusting a saw, substantially as and for the purposes setforth.

3. In a miter-machine, the base A, having a double-faced solid fin; amovable baseplate secured to the said base and provided with suitablenotches and suitable guideplates supported thereon, and an adjustablecatch suitably held and havinga pointed end corresponding with saidnotches and adapted to engage them, all combined substantially as andfor the purposes set forth.

4. In a miter-machine, the box I), provided with the adjusting-screws bb the catch 17, adapted to be moved longitudinally and laterally, therevolving base-plate B, arranged to present asuitable rack for theengagement of said catch,and having suitable saw-guides, and the base A,combined substantially as and for the purposes set forth. v

5. In a miter-machine, the base A, having the central fin a, solid withsaid base and forming a right angle with the under side of said baseupon each face of said fin, and

adapted to operate as and for the purpose described. I

6. In a miter-machine, the base-plate B, adapted to revolve and providedwith suit able notches h in combination with the catch b, adapted to beadjusted laterally by suitable means, substantial y as and for thepurposes set forth.

In testimony whereof I have aflixed my signature, in presence of twowitnesses, this 10th day of August, A. D. 1901.

WILLIAM J. PARSONS.

Witnesses:

SAMUEL D. CONANT, CLARENCE SHECKER.

